baber/WOPTO huggingface dataset:
Patent GB-660055-A (GB)
Title: Improvements in or relating to light tractors
IPC: B62D49/06
Filed: 1949-02-15
Abstract: 660,055. Agricultural implements. BALLU, L. H. D. M. Feb. 15, 1949, No. 4091/49. Class 6(i). [Also in Groups XXXI and XXXII] In an agricultural tractor (see Group XXXI) the front portion of the frame extends over the front wheel or wheels and has a clear upper surface for the support of implements. As shown, a ridging machine comprising shares 16 mounted on a pair of frame members 14 hinged at 15 is mounted on such support by pairs of parallel links 20. The parallel links are pivoted to the frame 14 and are connected at their upper ends to a pair of shafts 21 mounted in bearings, the bearings being retained in position on the supporting surface of the chassis frame by pivoted clips 31 and safety catches 32. The rearmost shaft 21 has a vertical arm 24 which is engaged by the hooked lever 27 connected to the hand lever 28 which by means of the latch and quadrant 29 can be locked in various positions to adjust the height of the implement.
Patent GB-1382274-A (GB)
Title: Moulding of articles of foam material
IPC: B29C44/42
Filed: 1972-01-28
Abstract: 1382274 Injection moulding cellular articles BRITISH UNITED SHOE MACHINERY CO Ltd 28 Jan 1972 [22 Jan 1971] 4119/72 Heading B5A A method of moulding an article of foam material comprises (a) mixing a moulding material and a blowing agent at a temperature below the foaming temperature, (b) injecting the mixture into a mould cavity and simultaneously increasing the temperature of the mixture at least to the foaming temperature, at a rate sufficient to fill the mould before the development of blowing gas, the surfaces of the mould cavity being at a temperature sufficient to cool the mixture adjacent thereto be below the foaming temperature but not to the solidification temperature of the moulding material, and (c) expanding the mould cavity and subsequently cooling the moulding mixture. The mould cavity may be expanded at a rate independent of the pressure in the cavity, exapnsion being commenced upon or immediately preceding termination of injection. Apparatus for carrying out the method is as described in Specification 1,292,318.
Patent GB-943609-A (GB)
Title: Improvements in breaking emulsions
IPC: B01D17/04
Filed: 1961-02-03
Abstract: Oil in water emulsions, for example emulsions containing roll oils, are broken by adding to the emulsion ferric chloride, in an amount of at least 2 kg. of ferric chloride, calculated as FeCl3.GH2O, per 1000 litres of emulsion. A comparative example shows the use as emulsion breakers of aluminium sulphate, sodium and potassium chlorides and sulphates, and sulphuric acid.
Patent GB-1254724-A (GB)
Title: New chemical compound useful as starting substance for amino sugars and process for producing it
Inventor: SUHARA YASUJI
IPC: C07D309/30
Filed: 1969-01-24
Abstract: 1,254,724. 5 - Acetamido 6 -methyltetrahydropyran-2-ol; amino sugars. ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI. 24 Jan., 1969 [31 Jan., 1968 (5); 11 Jan., 1969 (2)], No. 4155/69. Heading C2C. The novel compound, 5-acetamido-6-methyltetrahydropyran-2-ol is obtained by LiAIH 4  reduction of 5-acetamido-6-methyltetrahydropyran-2-one. The novel amide may be acetylated at temperatures below 100 C. with acetic anhydride in the presence of a tertiary base and the resultant compound heated ,to obtain 3- acetamido - 2 methyl - 3,4 - dihydro - 2H- pyran. Alternatively, the novel amide may be treated with acetic anhydride in the presence of a tertiary base at temperatures above 100 C. to obtain 3 - diacetylamino - 2 - methyl - 3,4- dihydro-2H - pyran which" on reaction with nitrosyl chloride in an organic solvent yields 2- chloro - 5 - diacetylamino - 6 - methyl - 3 - nitrosotetrahydropyran dimer. This dimer reacts with alcohols or polyols of the formula ROH, where R is an optionally hydroxyl substituted hydrocarbon radical to form dimers of the formula which on reduction, e.g. catalytic hydrogenation, and acid hydrolysis yield amines of the formula  which may be further hydrolysed, e.g. with Ba(OH) 2 , to a 2,4-diamino-2,3,4,6-tetradeoxyarabino-hexopyranoside of the formula In examples, the preparation of methyl, ethyl, iso-propyl and inosityl pyranosides (derivatives of kasugaminide) is described.  5 - Acetamido - 6 - methyltetrahydropyran - 2- one is prepared by treating 6-methyl-3,4-dihydro-2H-pyran-2-one with nitrosylchloride to obtain the dimer of 6-chloro,-6-nethyl-5-nitroso,- tetrahydropyran-2-one which on acid hydrolysis yields 4-oximino-5-oa;ohexaiwic acid which is subsequently reduced to DL.erythro-4.amino.5. hydroxyhexanoic acid from which the required pyran-2-one is obtained by lactonization, e.g. using acetic anhydride. The 4-amino-5-hydroxyhexanoic acid may be N-methylated with HCHO in the presence of H 2 /Pd/C and the resultant 4 - dimethylamino 5 - hydroxyhexanoic acid lactonized to 3-dimethylamino-2- methyltetrahydropyran-5-one, characterized as the picrate. This lactone can be reduced with LiAIH 4  to 5-hydroxy-9-di'methylamino-Z-methyltetrahydropyran.
Patent GB-219607-A (GB)
Title: Improvements in or relating to electric pocket lamps
IPC: F21L4/00
Filed: 1924-02-18
Abstract: 219,607. Lax, H., [Firm of], and Lax, B. Feb. 18, 1924. Battery lamps.-An electric pocket lamp of the type in which the opening of the cover automatically puts the lamp in circuit is provided with a bulb which is mounted independently of the cover and in its operative position freely projects above the casing so that its rays are unobstructed. The bulb 3 is pivoted within the casing 1 and is connected thereto by a spring 4. The cover 2 is provided with a spring 5 which, on closing the cover, tilts the bulb and breaks its circuit with the battery. An insulating- strip 10 prevents short-circuiting of the battery when the casing is closed.
Patent GB-510466-A (GB)
Title: Improvements in or applicable to tubular framed seats
IPC: B60N2/005
Filed: 1938-02-15
Abstract: 510,466. Seat backs ; attaching upholstery. MARSHALL, J. E. L. Feb. 15, 1938, No. 4638. [Classes 52 (ii) and 52 (iv)] A tubular-frame seat has a detachable upholstered back D secured by attachment devices E, F on the side and top edges having concave seats shaped to spring over and engage with the side members and top rail of the tubular back frame. The top rail G may be detachably secured to one of the side members by means of split spigot G<1> expanded within a socket B' by a screw J. The seats E, F are trough shaped and may be secured directly to the back or may be mounted on leaf springs. Brackets C' support the back. Specification 464,355 is referred to.
Patent GB-348680-A (GB)
Title: Process for the manufacture of azo dyestuffs
IPC: C09B43/14
Filed: 1930-02-11
Abstract: Azo dyes are made by coupling diazo compounds containing mordanting groups, e.g. an hydroxy or carboxy group in o-position to the diazo group or the salicylic group with an aminophenyl pyrazolone derivative and converting the aminoazo dyestuff into the urea derivative by treating with phosgene or thiophosgene. Cotton dyed with these dyestuffs is rendered fast to washing and light by treatment with heavy metal salts.  In examples (1) the dyestuff o- or p-aminosalicylic acid --> 1-p-aminophenyl-3-methyl-5-pyrazolone is treated with phosgene; the urea dyes cotton in yellow shades rendered fast by after-treatment with copper sulphate in acetic acid solution; a mixture of o-and p-aminosalicylic acids may be used and also the m-aminophenylpyrazolone- or m- or p-amino-1-phenyl-5-pyrazolone-3-carboxylic acid or esters, (2) the dyestuff p-aminobenzoyl-o-aminosalicylic acid --> 1-m-aminophenyl-3-methyl - 5 - pyrazolone is treated with phosgene, (3) the urea from p-phenylenediamine carboxylic acid is tetrazotized and coupled with 1-p-aminophenyl-3-methyl-5-pyrazolone and the product treated with phosgene; the dyestuff is ground with caustic alkali to impart solubility, (4) the following monoazo dyes are phosgenated 5-nitro-1 : 2-aminophenol, diazotized and then nitrated 1 : 2-aminonaphthol-4-sulphonic acid, 1 : 2-aminonaphthol-4-sulphonic acid or 2 : 3-aminonaphthol-6-sulphonic acid --> 1-p-aminophenyl-3-methyl-5-pyrazolone.  The above urea dyestuffs other than those from a nitrated diazo component may also be obtained by coupling the diazo component with the nitrophenylmethylpyrazolone, reducing and phosgenating.
Patent GB-1592438-A (GB)
Title: Flexibly locked cover for road or like surfaces
IPC: E02D29/12
Filed: 1978-02-06
Abstract: Manhole cover for thoroughfares, having an annular seat (1) which is made of rubber and lies between a frame (4) and a manhole lid (8). The seat (1) has recesses protruding radially outwards and projections (15a) protruding radially inwards in an alternating manner on its inner circumferential surface (15). The lid (8) has correspondingly arranged recesses extending radially inwards and projections (16a) extending radially outwards on its circumferential surface (16) so that the lid (8) can be inserted into the frame (4) via the corresponding recesses but so that it can no longer be lifted off the frame (4) after it is turned relative to the frame (4) by the angular extent of one of the recesses, since the projections (15a, 16a) allocated to one another reach behind one another. <IMAGE>
Patent GB-999422-A (GB)
Title: Improvements in shaped articles composed partly of an oxymethylene polymer
IPC: C08K3/00
Filed: 1962-02-07
Abstract: A shaped article is composed of both a solid thermoplastic oxymethylene polymer and a metal, a metal oxide, a metal silicate, a metal sulphide, carbon, silica or boron, the polymer containing adjacent carbon atoms. Preferably the adjacent carbon atoms form 0.4 to 25 weight per cent of the polymer and are preferably oxyethylene groups.  A thermal stabilizer, e.g. 4, 41-butylidene bis-(3-methyl-6-tertiary butyl phenol) and a chain scission inhibitor, e.g. cyanoguandine or a polyamide may also be present.
Patent GB-930263-A (GB)
Title: Improvements in or relating to skids or supports for load carrying pallets, packages, cases or the like
Inventor: WILLIAMS CHARLES SHELDON
IPC: B65D71/00
Filed: 1961-02-08
Abstract: 930,263. Boxes. ALBERT E. REED & CO. Ltd. Feb. 7, 1962 [Feb. 8, 1961], No. 4738/61. Class 18. [Also in Group XXX] A support for attachment to a case or package to keep it clear of the ground comprises a rectangular section tube divided internally by a vertical rib 5 hingedly fixed at one end to the top or bottom of the tube, the whole being rendered rigid by slotted reinforcing elements 10. The tube-and preferably also the reinforcing elements-is made of corrugated cardboard or the like, the tube being preferably folded from a single sheet, a central strip 2 of which has the elements 10 placed thereon before the sheet is folded around them and its edges forming the rib tucked into the slots 11 in the elements 10. Flaps 8 integral with the tube and/or holes 9 for receiving wire or the like are provided to facilitate attachment of the support to the case or package.
Patent GB-635043-A (GB)
Title: Improvements in or relating to bicycles and other vehicles propelled by a person or persons riding thereon
IPC: B62M1/10
Filed: 1948-02-18
Abstract: 635,043. Driving mechanism for rider-propelled vehicles. GOODWIN, A. P. Feb. 18, 1948, No. 4802. [Class 136 (ii)] In a rider-propelled vehicle having a flywheel connected through gearing to the driving mechanism so as to rotate, when the vehicle is driven, at a substantially higher speed than the input shaft of the driving mechanism, the flywheel is mounted for independant rotation on the input shaft and is connected thereto through gearing including at least one lay shaft. As shown applied to a bicycle, the usual bottom bracket is replaced by a pair of laterally spaced sub-frames comprising tubes 16, 17, 18, 19 supporting fittings 21, 21 which carry bearings 22, 22 for a crank axle 23. A flywheel 32 is freely mounted on the crank axle and is rotatable with a small sprocket wheel 33. A larger sprocket 34 is mounted on a hub member 36 screw-threaded on the crank axle, two oppositely acting one way clutches 48, 51 being provided between the hub member 36 and the sprocket 34. The crank axle drive is transmitted by the sprocket 34 and a chain 42 to a small sprocket 41 on a lay shaft 37, mounted between the sub-frames, and thence through further chains 44, 47 and sprockets 43,45, 46 to the small sprocket 33 and flywheel 32 so that the latter rotates at a substantially higher speed than the crank axle. As shown in Fig. 3, each of the one-way clutches 48, 51 comprises a set of pawls 52 urged by springs 53 into engagement with ratchet teeth 54 on the sprocket 34. The clutch 48 permits the flywheel to overrun the crank axle whilst the clutch 51 prevents such over-running but is manually releasable by means of a flexible band 55 which retracts the pawls 52 (Fig. 6).
Patent GB-266710-A (GB)
Title: Process and apparatus for working internal combustion engines with crude oil
IPC: F02M21/10
Filed: 1927-02-21
Abstract: 266,710. Kretz, J. Feb. 26, 1926, [Convention date]. Vaporizers, external.-A mixture of heavy fuel and air is passed through an exhaust-heated chamber of large capacity compared with the inlet and outlet passages, so that during heating the velocity of the mixture is considerably reduced. One side of a sheet-iron casing a is connected by flanged necks c directly with the exhaust outlets of the engine. The mixture inlet pipe k and the outlet pipe l are connected, within the casing, by three pipes d, e, f arranged in parallel and forming the chamber of large capacity. The open ends g, h, i of the pipes are shouldered into the end of the casing, Fig. 3, and are secured thereto by screwed plugs m by removing which the pipes may be cleaned.
Patent GB-1169431-A (GB)
Title: Electric Pressure-Controlled Snap Switch.
IPC: D06F39/08
Filed: 1967-02-01
Abstract: 1,169,431. Fluid-pressure actuated switches. PATINVEST PATENTUND INVESTMENT A.G. 1 Feb., 1967 [8 Feb., 1966; 15 Feb., 1966], No. 4967/67. Heading H1N. In a pressure controlled snap-action switch in which a contact spring 9, Fig. 2, is moved between fixed and adjustable contacts 11, 12 by a snap spring 13 attached to a pressureactuated lever 20 acting against a pressure adjusting spring 6, a variable compensating torque is applied to the lever 20 by an additional spring 16 acting in opposition to the spring 6. The arrangement is such that low spring resistance is offered to the lever 20 at the lower end of the pressure range to give an adequate range of movement between the lowest settable change point and the bottom rechange point. This enables a stronger spring 6 to be used whereby a high-pressure range of settings by nut 8 is obtained. In the example a leaf spring 16 acts under compression between the lever 20 and an adjustable pivot point 17 on the casing 32. As the pressure increases and the arm 20 moves upwards the compression on the spring 16 gradually reduces while a moment arm about the effective pivot of the arm 20 increases giving at first a progressively increasing torque followed by a progressively reducing torque assisting the movement of the lever 20. In the arrangement described, the diaphragm 1 actuates three independent switches through tappets 4 attached to a flexible diaphragm plate 3 and loosely engaging in separate levers 20 to permit tilting of the diaphragm when actuating switches set different pressures. The switch cover 7 is engaged by a press fit under a flexible projecting edge 31 of the main housing wall 30.
Patent GB-650267-A (GB)
Title: Improved device for destroying insects, particularly applicable for exterminating flies
IPC: A01M1/20
Filed: 1948-02-20
Abstract: 650,267. Destroying insects. WADE, W. L., and LAWRENCE, S. Feb. 20, 1948, No. 5003. [Class 5(i)] A device for destroying insects comprises a container 8 for holding a supply of liquid insecticide provided with a closure cap 9 and having a length of cord 11, tape or like material folded within the container with one end 13 protruding through an aperture in the cap whereby the cord or the like may be drawn out when required. The aperture in the cap through which the cord or the like protrudes is sealed against leakage before the device is used. The Provisional Specification describes also a device comprising a container for powdered or liquid adhesive, a length of tape being enclosed within the container, both ends of the tape being adapted to be drawn out of the container when required.
Patent GB-1402664-A (GB)
Title: Bearing assembly
IPC: F16C19/52
Filed: 1973-02-01
Abstract: 1402664 Bearings UNITED AIRCRAFT CORP 1 Feb 1973 [9 Feb 1972] 5080/73 Heading F2A A bearing assembly comprises a plurality of stacked rolling bearings 14 mounted on a shaft 10, a clamping member 36 on said shaft for preloading said bearings, and a shim 42 located between said bearings and said member; the shim is of non-fusible composite material which is stable at normal operating temperatures of said bearing assembly, but becomes unstable at a higher temperature and collapses by compressive failure, thereby relieving the preload. The shim 42 is sandwiched between two annular plates 44, 46 (Fig. 2), being located in an annular groove 58 in the plate 46. Radial lubricating grooves 52 are provided in the plate 44. The shim may consist of circumferential layers of resin-impregnated fibre glass cloth. A high-strength roving of graphite cloth may be wound on the outer periphery of the composite shim.
Patent GB-875417-A (GB)
Title: Improvements relating to the construction of engine connecting-rods
IPC: F16C9/04
Filed: 1960-02-12
Abstract: 875,417. Connecting-rods. DAIMLERBENZ A.G. Feb. 12, 1960 [Feb. 14, 1959], No. 5128/60. Class 122 (1). [Also in Group XXXIV] In an engine connecting-rod, particularly for V engines, the big end is in two parts 1, 2, made from bronze, the internal and external bearing surfaces 11, 12 having a thin coating of bearing metal, e.g. tin or lead, preferably electroplated, the parts 1, 2 being secured to the flange 7 of the connecting rod stem 8 by bolts 10. The part 1 is located on the stem by projections 5, and the parts 1, 2 have serrated faces 3 and are pinned at 4. The faces 6 between the parts 1 and 8 may be curved or wedge-shaped, and the dimension d of the stem 8 is less than the diameter D of the engine cylinder Z to facilitate assembly on the crank-shaft. A rib 81 on the stem is cut away at 9 for the passage of the mating connecting-rod.
Patent GB-328069-A (GB)
Title: Improvements in or relating to display signs
IPC: G09F13/14
Filed: 1929-02-15
Abstract: 328,069. Akers, W T., Lavender, C. H. N., Martyn, A. J., and Woollcott, W. Feb. 15, 1929. Signs; name and number plates.- In box signs of the type wherein a cutout stencil is backed by a translucent sheet, the apertures in the stencil are edged by a projecting flange having a reflecting surface. As shown, the stencil 12 of a box sign 11 is held in channels 13, 14 and has a cut-out portion 17 in the form of a letter, surrounding which is a reflecting flange 18. The stencil is backed by a translucent glass screen 16. The flange may be spaced away from the margin of the aperture, either towards the opposite margin to produce a narrow illuminated border outside it, or away from the opposite margin, to produce a narrow opaque border within it. The flanges may also project inwardly from the plane of the stencil, and may be of L-, Z, or other shape in cross-section.
Patent GB-511517-A (GB)
Title: Improvements in and relating to priming or charging arrangements for centrifugal pumps
IPC: F04D9/04
Filed: 1938-02-18
Abstract: 511,517. Centrifugal pumps. SOUTHERN, J., and WORTHINGTON-SIMPSON, Ltd. Feb. 18, 1938, No. 5159. [Class 110 (i)] A centrifugal pump is primed by a water-ring pump 4 which, when priming is completed, is unloaded by discharge of sealing liquid therefrom, the liquid being replaced by air from a container, so making the pump suitable for submersible work. The valve described in Specification 470,208 is enclosed in a float chamber 14 separate from the pump housing, and the air inlet 26 to the pump 4 is connected either to main suction or through pipe 29 to an air container formed by passages 11, 12 in an arched extension to the make-up reservoir 7, which extension also supports an upper bearing for the shaft 2. The reservoir 7 has a non-return valve 39 permitting escape of released air to within a bell which encloses the driving-motor as described in Specification 446,771. The pump 4 is unloaded through passage 37, pipes 36, 34 to reservoir 7, and loaded through pipes 31, 34.
Patent GB-114498-A (GB)
Title: Improvements in Seat Fittings for the Cars of Aircraft.
Inventor: BRUCE ROBERT ARTHUR
IPC: B64D7/02
Filed: 1917-04-19
Abstract: 114,498. Bruce, R. A. April 19, 1917. Mountings for use on aircraft.-Relates to aeroplanes in which a gun is mounted on a ring 4 rotating on a fixed ball race 2, and consists in suspending the gunner's seat 9 directly from the ring 4 by tubes 5, 7 and ties 10, 12. The seat is hinged to the cross-tube 7 so that it may be folded up.
Patent GB-811946-A (GB)
Title: Improvements in and relating to the treatment of polymers
IPC: C09D167/06
Filed: 1956-02-22
Abstract: A synthetic resin composition comprises polyvinyl chloride, a vinyl chloride copolymer, particularly a vinyl chloride-vinyl acetate copolymer, or a cellulose ester, particularly nitrocellulose, and a polyester which has a softening point above 100 DEG  C. and whose acid component consists at least in part of fumaric acid.  The polyester may be produced from ethylene glycol, 1.4-butane diol or hexamethylene glycol and fumaric acid, with or without other di- or polycarboxylic acids such as succinic, sebacic, adipic, hexahydroterephthalic or terephthalic acid. Compositions containing vinyl chloride polymers may be used to produce foils or extruded to form tubes.  In an example a lacquer is produced by mixing 16 parts of collodion cotton with 40 parts of a polyester having a softening point of 130 DEG  C. and a molecular weight of about 5000 produced from 1 mol. fumaric acid and 1 mol. 1.4-butane diol and dissolving the mixture in methylene chloride to form a 15 per cent solution.
Patent GB-684899-A (GB)
Title: Improvements in or relating to a device for signalling the blowing of a fuse, for amplification stations in telecommunications
Inventor: LEBEDINSKY MYRON
IPC: G01R31/02
Filed: 1951-03-07
Abstract: 684,899. Protective cut-out arrangements. SOC. ANON. DE TELECOMMUNICATIONS. March 7, 1951 [April 14, 1950; May 12, 1950], No. 5559/51 Class 38 (v) [Also in Group XXXVI] Each of a number of fuses is in parallel with a resistance in series with a relay which is actuated when the fuse fails to operate a signal lamp. As shown in Figure 1 lamp 16 can be used with switches p1 ..... p9 to test the continuity of any one of fuses f1 .... f9, and when in position P10, the rupture of any fuse f1 ..... f10 actuates relay 13 or 14 to light lamp 15 and earth a bell circuit connected to C; the rupture of fuses f39 .... f43, f11 ..... f28 or f29 ..... f38 similarly actuates relay 14, by allowing a member to fall and connect the leads to the relay, and the rupture of fuse 44 similarly lights lamp 16. In Fig. 2, the rupture of the fuse energizes relay 21 to light lamp 22, while the failure of supply de-energizes relay 23 to light lamp 24; the relay 21 may be replaced by a relay 21<SP>1</SP>, Fig. 3, with two windings connected one to each end of the fuse.